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Research Article Open access CC BY 4.0

Determination of Heavy Metals in Water and Some Selected Fish Species in River Ofin, Ado-Ekiti

Idowu Eunice Opeyemi, Olorunfemi Omotolani Olatunde

Annual Research & Review in Biology · pp. 52–62 · Published 13 May 2020

10.9734/arrb/2020/v35i330200

Abstract

This study investigates the physico-chemical parameters of water and quantification of heavy metals (zinc, copper, lead, chromium and cadmium) in the gill, liver and flesh of Oreochromis niloticus, Hemichromis fasciatus, Sarotherodon galilaeus and Oreochromis aureus in River Ofin, fortnightly at two sampling points (Point 1- upper stream and Point 2- downstream) from October to December, 2019, using Atomic Absorption Spectrophotometer by the calibration plot method. Three processes were involved; standard preparation, equipment calibration and sample analysis Mean values of the parameters were; Temperature; 27.18±0.15°C, pH; 7.06±0.10, Turbidity; 9.0±0.94 Ntu, Conductivity; 236.10±0.53 µs/cm, DO; 6.67±0.16 mg/l and BOD; 6.87±0.81 mg/l.  Mean values of the concentration of the heavy metals in the water were; Zn; 0.31±0.01 mg/l, Cu; 0.26±0.01 mg/l, Pb; 0.13±0.01 mg/l, (Pb in water was higher than the highest value 0.12±0.003 (P≤0.05) recorded in fish) Cr; 0.12±0.01 mg/l and Cd; 0.002±0.001 mg/l while the concentration of heavy metals in fish varies from species to species as it displayed species differences.  Heavy metal concentration in water is in this order: Zn>Cu>Pb>Cr>Cd. The presence of Zn, Cu, Pb, Cr and Cd were confirmed in all the fish species expect Cd that was discovered only in the gill of S. galilaeus. Metals in fish gills is in the order of Zn>Cu>Pb>Cr>Cd for the four species, for liver and flesh/muscle in O. niloticus and H fasciatus it is Cu>Zn>Cr.  Pb was detected only in the gill of O. niloticus, the liver and flesh lack Pb. Other fish species parts showed different Pb concentrations with the highest value (0.12±0.003) recorded in the gill of O. aureus. This study showed that Cd, Cr, Zn, and Cu were in the maximum acceptable limit range (Cr; 0.44, Zn; 5.04, Cu; 1.37 and Cd; 0.20) while Pb in water and fish was slightly above the maximum acceptable limit range (Pb; 0.04) by FAO/WHO. Lead poisoning is ranked among the most common environmental health hazard even at low levels. Periodic monitoring by relevant regulatory authorities is recommended to ensure safety of the water and fish consuming populace.

Physico-chemical parameters water heavy metals fish species river Ofin

References (17)

  1. 1 Heavy metals: Implications associated to fish consumption [DOI]
  2. 2 Copper and zinc in four freshwater fish species from Lake Pamvotis (Greece) [DOI]
  3. 3 Bioaccumulation of Heavy Metals in Some Tissues of Fish in Lake Geriyo, Adamawa State, Nigeria [DOI]
  4. 4 Heavy metal contamination of Clarias gariepinus from a lake and fish farm in Ibadan, Nigeria [DOI]
  5. 5 Heavy metals in surface water, sediments, fish and perwinkles of Lagos lagoon.
  6. 6 Mineral and heavy metal contents of marine fin fish in Langkawi island, Malaysia
  7. 7 Determination of lead, cadmium and mercury in surrounding water and organs of some species of fish from Ikpoba river in Benin city, Nigeria [DOI]
  8. 8 Accumulation Profile of Heavy Metals in Fish Samples from Nsawam, Along the Densu River, Ghana
  9. 9 Comparative Physicochemical and Microbiological Qualities of Source and Stored Household Waters in Some Selected Communities in Southwestern Nigeria [DOI]
  10. 10 Assessment of heavy metal residues in water, fish tissue and human blood from Ubeji, Warri, Delta State, Nigeria [DOI]
  11. 11 Study of the Seasonal Variation in the Physico-Chemical Parameters of a Tropical Reservoir [DOI]
  12. 12 A study of the physico-chemical water quality, hydrology and zooplankton fauna of Opa Reservoir catchment area, Ile-Ife, Nigeria [DOI]
  13. 13 The Physico-chemistry and Plankton Diversity of Awba Reservoir University of Ibadan, Ibadan Nigeria [DOI]
  14. 14 A preliminary study on limnological stock assessment, productivity and potential fish yield of Omi Dam, Nigeria [DOI]
  15. 15 Evaluation of metal contents in female Oreochromis niloticus with emphasis on potential risk of consumption and relation to some biological aspects [DOI]
  16. 16 Hydrological Assessment Of Water Resources And Environmental Impact On An Urban Lake: A Case Study Of Eleyele Lake Catchment, Ibadan, Nigeria [DOI]
  17. 17 RADIOLOGICAL INVESTIGATION OF MEAT OF GAME AND DOSE ESTIMATION FOR HUNTERS AND MEMBERS OF THEIR FAMILIES [DOI]

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